WO2011131012A1 - Convertisseur et alimentation électrique à correction de facteur de puissance, et procédé de commande correspondant - Google Patents

Convertisseur et alimentation électrique à correction de facteur de puissance, et procédé de commande correspondant Download PDF

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Publication number
WO2011131012A1
WO2011131012A1 PCT/CN2010/079747 CN2010079747W WO2011131012A1 WO 2011131012 A1 WO2011131012 A1 WO 2011131012A1 CN 2010079747 W CN2010079747 W CN 2010079747W WO 2011131012 A1 WO2011131012 A1 WO 2011131012A1
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WO
WIPO (PCT)
Prior art keywords
inductor
switch tube
tube
switch
factor correction
Prior art date
Application number
PCT/CN2010/079747
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English (en)
Chinese (zh)
Inventor
陈文彬
黄伯宁
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华为技术有限公司
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Publication of WO2011131012A1 publication Critical patent/WO2011131012A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0043—Converters switched with a phase shift, i.e. interleaved
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/0085—Partially controlled bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the present invention relates to the field of circuits, and more particularly to a power factor correction converter and a power supply and a control method therefor.
  • PFC bridgeless power factor correction
  • L01 and L02 are the switching DC boost (Boost) circuit inductance
  • S01 and S02 are PFC main switch tubes
  • D01 and D02 are Boost power rectifier diodes
  • D03 and D04 are freewheeling diodes.
  • D05 and D06 do not participate in normal work, only play a role in surge protection.
  • the working principle is as follows:
  • S02 and S01, D03 and D04, L01 and L02 work symmetrically, and the working principle is consistent with the positive half cycle.
  • S01, D01, D04 and L01 do not participate in the work.
  • the conduction energy phase is turned on, and the current is passed through three devices L01, S01 and D04 in series; in the cut-off energy transfer phase of the switch, the current is passed through three devices L01, D01 and D04 in series.
  • the diodes D01 and D02 used on the bridge arm are silicon carbide diodes, and the cost of the entire bridgeless PFC circuit is increased due to the relatively high cost of the silicon carbide diode;
  • Embodiments of the present invention provide a power factor correction converter, a power supply, and a control method thereof, which can reduce cost and improve power conversion efficiency.
  • the power factor correction converter includes: an interleaved control tube group, an alternating current power source, a first inductor, a second inductor, a third inductor, a capacitor, a first bridge arm, and a second bridge arm;
  • the bridge arm includes a first switch tube and a second switch tube connected in series;
  • the second bridge arm includes a third switch tube and a fourth switch tube connected in series;
  • the interlaced control tube group, the first bridge arm, the The second bridge arm and the capacitor are connected in parallel with each other;
  • the AC power source is connected in series with the first inductor, and the second inductor and the third inductor are connected in series with the first inductor;
  • the inductor is connected to the first bridge arm, and the third inductor is connected to the second bridge arm;
  • the AC power source is connected in series with the first inductor and connected to the interlaced control tube group.
  • An embodiment of the present invention provides a power supply, including the power factor correction converter provided by the embodiment of the present invention.
  • the power factor correction converter control method includes: closing the second switch tube and the third switch tube, disconnecting the first switch tube and the fourth switch tube, charging the first inductor and the second inductor, and simultaneously Discharging the third inductor; closing the first switch tube and the third switch tube, disconnecting the second switch tube and the fourth switch tube, discharging the first inductor, the second inductor, and the third inductor; closing the first switch tube and the first a four-switching tube, disconnecting the second switching tube and the third switching tube to discharge the second inductor and simultaneously charging the first inductor and the third inductor; closing the first switching tube and the third switching tube, and disconnecting the second switching tube And a fourth switching transistor that discharges the first inductor, the second inductor, and the third inductor.
  • the power factor correction converter control method includes: closing the second switch tube and the third switch tube, disconnecting the first switch tube and the fourth switch tube, charging the first inductor and the second inductor, and simultaneously Discharging the third inductor; closing the second switch tube and the fourth switch tube, opening the first switch tube and the third switch tube, charging the first inductor, the second inductor, and the third inductor; closing the first switch tube and the first a four-switching tube, disconnecting the second switching tube and the third switching tube, discharging the second inductor, charging the first inductor and the third inductor; closing the second switching tube and the fourth switching tube, and disconnecting the first switching tube And a third switching transistor for charging the first inductor, the second inductor, and the third inductor.
  • the power factor correction converter control method provided by the embodiment of the invention includes: closing the first opening "'Q" switch and the fourth switch tube, disconnecting the second switch tube and the third switch tube, discharging the third inductor, charging the first inductor and the second inductor; closing the second switch tube and the fourth switch tube Disconnecting the first switch tube and the third switch tube to discharge the first inductor, the second inductor, and the third inductor; closing the second switch tube and the third switch tube, and disconnecting the first switch tube and the fourth switch tube, Discharging the second inductor, charging the first inductor and the third inductor at the same time; closing the second switch tube and the fourth switch tube, opening the first switch tube and the third switch tube, for the first inductor and the second inductor And a third inductor discharge.
  • the power factor correction converter control method includes: closing the first switch tube and the fourth switch tube, disconnecting the second switch tube and the third switch tube, charging the first inductor and the second inductor, and simultaneously Discharging the third inductor; closing the first switch tube and the third switch tube, disconnecting the second switch tube and the fourth switch tube, charging the first inductor, the second inductor, and the third inductor; closing the second switch tube and a three-switching tube, disconnecting the first switching tube and the fourth switching tube, discharging the second inductor, charging the first inductor and the third inductor; closing the first switching tube and the third switching tube, and disconnecting the second switching tube And a fourth switch tube for charging the first inductor, the second inductor, and the third inductor.
  • the embodiments of the present invention have the following advantages:
  • two switch tubes connected in series are used as the switch on the first bridge arm and the second bridge arm, instead of using a silicon carbide diode, since the cost of the switch tube is much lower than that of the silicon carbide diode, it can effectively reduce Cost
  • the voltage drop of the switching transistor is much smaller than the voltage drop of the silicon carbide diode, the consumed electric energy can be reduced when the current is connected in series, thereby improving the power conversion efficiency.
  • the first inductor functions as a common inductor of the two sets of double Boost conversion circuits, and has the function of automatically balancing two sets of double Boost circuits, thereby making the interleaving control of the two sets of double Boost circuits easier, and reducing the DSP (Digital Signal Processor) control two groups.
  • the complexity of the double Boost circuit is interleaved.
  • FIG. 1 is a schematic diagram of a PFC converter in the prior art
  • FIG. 2 is a schematic diagram of an embodiment of a PFC converter according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a PFC converter according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a PFC converter according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a PFC converter according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an embodiment of a power supply according to an embodiment of the present invention.
  • Embodiments of the present invention provide a power factor correction converter, a power supply, and a control method thereof, which can reduce cost and improve power conversion efficiency.
  • an embodiment of a PFC converter in an embodiment of the present invention includes:
  • Interleaving control tube group AC power source, first inductor L1, second inductor L2, third inductor L3, capacitor C, first bridge arm and second bridge arm;
  • the first bridge arm includes a first switch tube S1 and a second switch tube S2 connected in series;
  • the second bridge arm includes a third switch tube S3 and a fourth switch tube S4 connected in series;
  • the interleaved control tube group, the first bridge arm, the second bridge arm and the capacitor C are connected in parallel with each other;
  • the AC power source P is connected in series with the first inductor L1
  • the second inductor L2 and the third inductor L3 are connected in parallel and connected in series with the first inductor L1;
  • the second inductor L2 is connected to the first bridge arm, and the third inductor L3 is connected to the second bridge arm;
  • the interleaved control tube group is connected to the AC power source P, and the first inductor L1 is connected to the second inductor L2 and the third inductor L3.
  • interleaved control tube group in this embodiment may include two diodes or switch tubes connected in series.
  • the diode D 1 and the diode D2 are taken as an example for description.
  • the first inductor L1, the second inductor L2, and the third inductor L3 in this embodiment may be a single inductor or a coupled inductor.
  • the first switch S1, the second switch S2, the third switch S3, and the fourth switch S4 in this embodiment may be metal oxide semiconductor field effect transistors (Mosfet, Metal Oxide Semiconductor Field Effect Transistor). Switching tubes, or Insulated Gate Bipolar Transistor (IGBT) switches, or other types of switching tubes.
  • Mosfet Metal Oxide Semiconductor Field Effect Transistor
  • IGBT Insulated Gate Bipolar Transistor
  • the capacitor C may be a separate capacitor device or a module or circuit capable of implementing a capacitor function, which is not limited herein.
  • two switch tubes connected in series are used as the switch on the first bridge arm and the second bridge arm, instead of using a silicon carbide diode, since the cost of the switch tube is much lower than that of the silicon carbide diode, it can effectively reduce Cost
  • the interleaving control tube group, the first inductor L1, the second inductor L2 and the first bridge arm form a set of double Boost conversion circuits
  • the interleaved control tube group, the first inductor L1, the third inductor L3 and the second bridge arm constitute Another set of double Boost conversion circuits
  • two sets of double Boost conversion circuits are interleaved and turned on at any angle, for example, 180 degrees difference
  • two sets of double BOOST are superimposed on the output of the latter stage circuit, the ripple is cancelled, and the output voltage is more stable
  • the first inductor L1 acts as a common inductor of the two sets of double Boost conversion circuits, and has the function of automatically balancing two sets of double Boost circuits, which makes the interleaving control of the two sets of double Boost circuit
  • FIG. 3 depicts another embodiment of the PFC converter in the embodiment of the present invention.
  • the PFC converter shown in FIG. 3 is compared to the PFC converter shown in FIG.
  • More bridge arms and inductors can be added. The specific number is not limited herein.
  • Each bridge arm is connected in parallel with the first bridge arm and the second bridge arm.
  • Each bridge arm includes two switch tubes connected in series.
  • Each inductor is connected in parallel with the second inductor L2 and the third inductor L3, and each inductor is connected to a corresponding bridge arm.
  • FIG. 4 depicts another embodiment of the PFC converter in the embodiment of the present invention.
  • the PFC converter shown in FIG. 4 is compared to the PFC converter shown in FIG.
  • a protection tube group is disposed.
  • the protection tube group is located between the AC power source P and the first inductor L1.
  • the protection tube group is connected in parallel with the interleaved control tube group, the first bridge arm, the second bridge arm, and the capacitor C.
  • the protection tube group of this embodiment may include two diodes or switches in series.
  • the diode D3 and the diode D4 are taken as an example for description.
  • the diode D3 and the diode D4 function as a lightning protection diode.
  • the diode D3 and the diode D4 do not participate in the operation.
  • the diode D3, the diode D4, the diode D1, the diode D2, and the capacitor C together clamp the lightning voltage and current. .
  • scheme of adding a protection tube group in this embodiment can also be adapted to the scheme with more bridge arms and more inductance as shown in FIG.
  • the capacitor C may be a separate capacitor device or a module or circuit capable of implementing a capacitor function, which is not limited herein.
  • the protection tube group can be added, and when a lightning strike occurs, the diode D3 and the diode —— g———
  • diode Dl, diode D2 and capacitor C together clamp the voltage and current, thus effectively preventing lightning surges.
  • FIG. 5 depicts another embodiment of the PFC converter in the embodiment of the present invention.
  • the PFC converter shown in FIG. 5 is compared to the PFC converter shown in FIG.
  • the AC power supply P and the position of the first inductor L1 are exchanged, that is, the interleaved control tube group is connected to the first inductor L1, and the AC power source P is connected to the second inductor L2 and the third inductor L3, and the protection tube group can also be added. .
  • the protection tube group of this embodiment may include two diodes or switches in series.
  • the diode D3 and the diode D4 are taken as an example for description.
  • the diode D3 and the diode D4 function as a lightning protection diode.
  • the diode D3 and the diode D4 do not participate in the operation.
  • the diode D3, the diode D4, the diode D1, the diode D2, and the capacitor C together clamp the lightning voltage and current. .
  • the scheme of adding the protection tube group and changing the positions of the first inductor L1 and the AC power source P in the embodiment can also be adapted to the scheme with more bridge arms and more inductances as shown in FIG.
  • the capacitor C may be a separate capacitor device or a module or circuit capable of implementing a capacitor function, which is not limited herein.
  • the protection tube group can be added.
  • the diode D3, the diode D4, the diode D1, the diode D2, and the capacitor C together clamp the lightning voltage and current, so that the lightning surge can be effectively prevented.
  • the PFC converter control method in the embodiment of the present invention is described below.
  • the PFC converter control method in the embodiment of the present invention is applied to the PFC converter shown in FIG. 2 to FIG. 5, and the PFC converter shown in FIG. As an example to illustrate:
  • the working voltage of the PFC converter is divided into positive half cycle and negative half cycle.
  • the duty cycle is more than 50% and less than 50%.
  • the duty cycle is also in the mode of more than 50% and less than 50%.
  • the mode of more than 50% or the mode of less than 50% may be used, which is not limited herein.
  • the voltage is in the positive half cycle, the duty cycle is less than 50% mode:
  • the second switch tube S2 and the fourth switch tube S4 are the main tubes, and the specific process may be: (1) closing the second switch tube and the third switch tube, and disconnecting the first switch tube and the fourth switch tube, Charging the first inductor and the second inductor while discharging the third inductor:
  • the second switch tube S2 and the third switch tube S3 are closed, the first switch tube S1 and the fourth switch tube S4 are disconnected, and the energy of the input power source passes through the first inductor L1, the second inductor L2, the second switch tube S2, and
  • the circuit formed by the diode D2 charges the first inductor L1 and the second inductor L2, and the current in the first inductor L1 and the second inductor L2 increases while being stored in the first inductor L1, and the energy in the third inductor L3 also passes through the first A loop composed of the inductor L1, the third inductor L3, the third switch S3, the capacitor C, and the diode D2 is transmitted to the output capacitor C, and the current of the third inductor L3 is decreased.
  • the first switch S1 and the third switch S3 are closed, the second switch S2 and the fourth switch S4 are disconnected, and the energy stored in the first inductor L1 and the second inductor L2 also passes through the first inductor L1.
  • the circuit composed of the second inductor L2, the first switch S1, the capacitor C, and the diode D2 is transmitted to the output capacitor, and the currents of the first inductor L1 and the second inductor L2 are reduced, and are stored in the first inductor L1 and the third inductor L3.
  • the energy in the first inductor L1, the third inductor L3, the third switch S3, the capacitor C, and the diode D2 is also transmitted to the output capacitor C, and the currents of the first inductor L1 and the third inductor L3 are decreased.
  • the first switch S1 and the fourth switch S4 are closed, the second switch S2, and the third switch S3 are disconnected, and the energy stored in the first inductor L1 and the second inductor L2 also passes through the first inductor L1.
  • the circuit composed of the second inductor L2, the first switch S1, the capacitor C, and the diode D2 is transmitted to the output capacitor, and the current of the second inductor L2 is decreased, and the energy of the input power source passes through the first inductor L1, the third inductor L3, and the first
  • the circuit composed of the four switches S4 and the diode D2 charges the first inductor L1 and the third inductor L3, and the current in the first inductor L1 and the third inductor L3 increases.
  • the first switch tube S1 and the third switch tube S3 are closed, the second switch tube S2, and the fourth switch
  • the "OQ" tube S4 is disconnected, and the energy stored in the first inductor L1 and the second inductor L2 is also transmitted to the loop composed of the first inductor L1, the second inductor L2, the first switch S1, the capacitor C, and the diode D2.
  • the output capacitors, the currents of the first inductor L1 and the second inductor L2 are reduced, and the energy stored in the first inductor L1 and the third inductor L3 is also passed through the first inductor L1, the third inductor L3, and the third switch S3.
  • the circuit composed of the capacitor C and the diode D2 is transmitted to the output capacitor C, and the currents of the first inductor L1 and the third inductor L3 are decreased.
  • the voltage is in the positive half cycle, the duty cycle is greater than 50% mode:
  • the second switch tube S2 and the fourth switch tube S4 are the main tubes, and the specific process may be: (1) closing the second switch tube and the third switch tube, and disconnecting the first switch tube and the fourth switch tube, Charging the first inductor and the second inductor while discharging the third inductor:
  • the second switch tube S2 and the third switch tube S3 are closed, the first switch tube S1 and the fourth switch tube S4 are disconnected, and the energy of the input power source passes through the first inductor L1, the second inductor L2, and the second switch tube S2.
  • the circuit formed by the diode D2 charges the first inductor L1 and the second inductor L2, and the current in the first inductor L1 and the second inductor L2 increases, and the energy stored in the first inductor L1 and the third inductor L3 also passes through the first A loop composed of the inductor L1, the third inductor L3, the third switch S3, the capacitor C, and the diode D2 is transmitted to the output capacitor C, and the current of the third inductor L3 is decreased.
  • the second switch tube S2 and the fourth switch tube S4 are closed, the first switch tube S1 and the third switch tube S3 are disconnected, and the energy of the input power source passes through the first inductor L1, the second inductor L2, and the second switch tube S2.
  • the circuit formed by the diode D2 charges the first inductor L1 and the second inductor L2, and the current in the first inductor L1 and the second inductor L2 increases, and the energy input to the power source passes through the first inductor L1, the third inductor L3, and the fourth switch.
  • the circuit composed of the tube S4 and the diode D2 charges the first inductor L1 and the third inductor L3, and the current in the first inductor L1 and the third inductor L3 increases.
  • the first switch S1 and the fourth switch S4 are closed, the second switch S2, and the third switch S3 are disconnected, and the energy stored in the first inductor L1 and the second inductor L2 also passes through the first inductor L1.
  • the circuit composed of the second inductor L2, the first switch S1, the capacitor C, and the diode D2 is transmitted to the output power
  • the current of the second inductor L2 is decreased, and the energy of the input power source is charged to the first inductor L1 and the third inductor L3 through the loop formed by the first inductor L1, the third inductor L3, the fourth switch transistor S4, and the diode D2.
  • the current in the first inductor L1 and the third inductor L3 increases.
  • the second switch tube S2 and the fourth switch tube S4 are closed, the first switch tube S1 and the third switch tube S3 are disconnected, and the energy of the input power source passes through the first inductor L1, the second inductor L2, and the second switch tube S2.
  • the circuit formed by the diode D2 charges the first inductor L1 and the second inductor L2, and the current in the first inductor L1 and the second inductor L2 increases, and the energy input to the power source passes through the first inductor L1, the third inductor L3, and the fourth switch.
  • the circuit composed of the tube S4 and the diode D2 charges the first inductor L1 and the third inductor L3, and the current in the first inductor L1 and the third inductor L3 increases.
  • the voltage is in the negative half cycle, the duty cycle is less than 50% mode:
  • the first switch tube S1 and the third switch tube S3 are the main tubes, and the specific process may be: (1) closing the first switch tube and the fourth switch tube, and disconnecting the second switch tube and the third switch tube, Discharging the third inductor, charging the first inductor and the second inductor;
  • the specific circuit operation process in this mode is basically similar to the above-mentioned "mode in which the voltage is in the positive half cycle and the duty ratio is less than 50%". It is only the mode in which the voltage is in the positive half cycle and the duty cycle is less than 50%.
  • the first switch S1 and the second switch S2 are interchanged, the third switch S3 is exchanged with the fourth switch S4, and the diode D2 is replaced by a diode D1, a first inductor L1, a second inductor L2, and a third The current in the three inductors L3 is reversed.
  • the voltage is in the negative half cycle, the duty cycle is greater than 50% mode:
  • the first switch tube S1 and the third switch tube S3 are supervisors, and the specific process may be: (1) closing the first switch tube and the fourth switch tube, disconnecting the second switch tube and the third switch tube, charging the first inductor and the second inductor, and discharging the third inductor;
  • the specific circuit operation process in this mode is basically similar to the above-mentioned "voltage is in the positive half cycle, the duty cycle is greater than 50% mode".
  • the circuit is basically in the "positive half cycle, the duty cycle is greater than 50% mode”.
  • the first switch S1 and the second switch S2 are interchanged, the third switch S3 is exchanged with the fourth switch S4, and the diode D2 is replaced by a diode D1, a first inductor L1, a second inductor L2, and a third The current in the three inductors L3 is reversed.
  • the first switch tube Sl, the second switch tube S2, the third switch tube S3, and the fourth switch tube S4 in this embodiment may be Mosfet switch tubes, or IGBT switch tubes, or other types of switch tubes in practical applications.
  • FIG. 6 illustrates the structure of a power supply embodiment, including: a PFC converter, a resonant (LLC) circuit, and a synchronous rectification circuit provided by the embodiments of the present invention.
  • the power factor correction converter and the power supply and the control method thereof are provided in detail.
  • the specific implementation manner and the application range are The description is not to be construed as limiting the invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention concerne un convertisseur et une alimentation électrique à correction de facteur de puissance, ainsi qu'un procédé de commande correspondant. Ce convertisseur comprend un groupe d'interrupteurs de commande imbriqués, une alimentation en courant alternatif (P), un premier inducteur (L1), un deuxième inducteur (L2), un troisième inducteur (L3), un condensateur (C), le premier bras d'un pont, et le second bras d'un pont. Le premier bras du pont comporte un premier interrupteur de commande (S1) et un deuxième interrupteur de commande (S2) montés en série. Le second bras du pont comporte un troisième interrupteur de commande (S3) et un quatrième interrupteur de commande (S4) montés en série. Le groupe d'interrupteurs de commande imbriqués, le premier bras du pont, le deuxième bras du pont, et le condensateur (C) sont montés en parallèle. L'alimentation en courant alternatif (P) et le premier inducteur (L1) sont montés en série. Une extrémité du circuit monté en série est raccordée au groupe d'interrupteurs de commande imbriqués, l'autre extrémité étant raccordée à une borne commune du deuxième inducteur (L2) et du troisième inducteur (L3). L'autre extrémité du deuxième inducteur (L2) est raccordée au premier bras du pont. L'autre extrémité du troisième inducteur (L3) est raccordée au second bras du pont. Ce convertisseur se distingue par un moindre coût et une meilleure efficacité de la conversion de puissance.
PCT/CN2010/079747 2010-04-22 2010-12-14 Convertisseur et alimentation électrique à correction de facteur de puissance, et procédé de commande correspondant WO2011131012A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201010155655.8 2010-04-22
CN201010155655A CN101841236A (zh) 2010-04-22 2010-04-22 一种功率因数矫正变换器及其控制方法
CN2010105163435A CN101969271B (zh) 2010-04-22 2010-10-22 一种功率因数矫正变换器和电源及其控制方法
CN201010516343.5 2010-10-22

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Publication Number Publication Date
WO2011131012A1 true WO2011131012A1 (fr) 2011-10-27

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